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Complete Nuts & Bolts Kit
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$15.00
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Special Narrow Bushing Kits, with 24 Spacer Washers
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$93.00
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4 Custom Plated Shackle Plates
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$25.00
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Spring Offset Spacers Matched to Springs
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$66.00
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Complete Pkg of Springs, Mounting Parts with Offset Spacers
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$444.00
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Complete Pkg of Springs, Mounting Parts without Offset Spacers
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$380.00
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1¾ inch width springs.
Tip inserts for reduced friction.
Tension side of leaves shot peened.
Offer zero rear roll steer.
Minimal torsional resistance.
Operate with both positive or negative arch.
Up to ¾ inch more tire clearance.
Will bolt directly on street set ups.
Engineered to work with EPS complete front & rear suspension assemblies.
As used on our award winning & record breaking cars.
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Remember, flatter is faster!
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“B” springs mounted on Boss 302 loaded to about 3000 lbs total weight.
Note that it is nearly flat.
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“A” springs mounted on Shelby GT350 loaded to about 2700 lbs total weight.
Note that it is nearly flat.
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This is the complete narrow rear spring Bushing Mounting Kit for one spring.
The complete kit covers both sides. $133.00
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Typical rear spring installation showing washers used to fill in
original mounting location and springs offset to inside.
Note panhard rod installation.
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Front of spring showing tip inserts and 2nd leaf that is extended
forward to just under front eye. This offers improved
wrap up torque control.
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These are the precision machined offset spacers that allow an additional 3/8 inch offset. They are useful on street housing set ups. The cost is $66.00, which includes cutting down spring bolts for flush fit. They can also be used to move housing side to side or fore & aft and to correct housing alignment.
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This shows the offset spacer mounted to provide 3/8 side movement
of the spring relative to the housing.
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HISTORY:
It all started at the November 1966 SCCA National Championship Runoffs in Riverside California. Walt was on the pole for B/P with his Shelby GT350R, but Don Yenko had his 327 Corvette also on the front row only .1 sec off Walt’s time. Walt was concerned that Don would tap him for as spin about turn 5, like Bob Johnson did to Walt at Daytona in 1965. So, Walt’s crew headed for a salvage yard and picked up some softer rear springs, which would reduce over steer. They did and Walt went on to win the National Championship.
So, when Walt & his son, Chip, got into the Shelby/Mustang vintage race restoration business in 1988, the soft springs were remembered. But, 22 years later, the tires were wider, so rubbing was a problem. It was decided to narrow the rear spring leafs from 2 1/2 to 1 3/4 inches. These have been constantly improved over the years for reliability, arch balance and minimum inner leaf friction reduction. The springs now also have to work on cars with a weight spread over 500 pounds and about 150 horsepower difference. So, two versions of the springs have been developed.
It was also necessary to develop a universal mounting kit that would allow using the original body mounting brackets without modification. The kit has narrow poly bushings with washers to fill out the mounting width. The washers can be moved inboard or outboard to locate the springs properly to the housing. New front mounting bolts are also included as the old ones are often ruined during removal. Bolting the springs directly in place of original springs provides 3/8 inch more tire clearance. A full 3/4 inch tire clearance can be had by use of our mounting offset adaptors. The rear shackle design allows adjusting the ride height 1/2 inch. Lowering blocks are also available.
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Please feel free to contact us for further information at anytime:
Shop: 303-674-6017
Fax: 303-674-7255
Email: epswalth@aol.com
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Contact EPS for current pricing, shipping and availability information.
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